Black's Law Dictionary (2nd edition)dictionaries

De Licentia Transfretandi

writ of permission to cross the sea. An old writ directed to the wardens of the port of Dover, or other seaport in England, com-manding them to permit the persons named in the writ to cross the sea from such port, on certain conditions. Reg. orig. 193b.

Source: Black’s Law Dictionary 2nd Ed (1910)